The Primary Reasons That No More Than 30% of the Oil

question 66

Multiple Choice

The primary reasons that no more than 30% of the oil contained within most reservoirs is recovered are the viscosity of the oil and "patchy" (irregular) or low permeability.Which pair of techniques listed below would probably best increase the percentage of oil recoverable from a reservoir?

• A) injecting water into the reservoir, and hydraulically fracturing it
• B) adding weight to the ground surface to compress the reservoir, and applying greater suction to the pumps on the oil wells
• C) applying greater suction to the pumps on the oil wells and fracturing the reservoir
• D) hydraulically fracturing the aquifer and injecting steam into it

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